Fresnel zones in GRIN media

Jose Manuel Rivas-Moscoso; Carlos C. Gomez-Reino; Maria Victoria Perez Martin

doi:10.1117/12.437087

14 August 2001 Fresnel zones in GRIN media

Jose Manuel Rivas-Moscoso, Carlos C. Gomez-Reino, Maria Victoria Perez Martin

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437087
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

The free propagation of a wavefront in an inhomogeneous medium with parabolic refractive index profile and the division of the wavefront into Fresnel zones are studied. We determine the radius and the area of each zone as well as the zone contribution to the total wave at an observation point inside the medium. We find the condition that the optical path must fulfill from each zone to the aforementioned point so that the disturbance due to successive zones will be in phase opposition. Once this condition is settled the concept of zone plate in gradient- index media can be introduced.

Citation Download Citation

Jose Manuel Rivas-Moscoso, Carlos C. Gomez-Reino, and Maria Victoria Perez Martin "Fresnel zones in GRIN media", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437087

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